[modeller_usage] Making a heterotetramer model, while one of the chain is built by using two template

Dear Modeller users

As the Subject said, I want to make a heterotetramer model, and make one of the chains by using two template. I know how to make heterotetramer model or build a single chain with multitemplate. The problem is that I don't know how to combine these two in my case.

Thank you in advance

Best Zhucheng